Chlorate Antimicrobial System for Selective Bacterial Viability Reduction
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Solution Overview
Problem
Current methods struggle to effectively reduce antibiotic resistance and bacterial survivability, particularly in Nar- and Nap-containing bacteria, due to their defense mechanisms and the toxicity of existing chlorine oxyanions on non-target cells.
Innovation Solution
The use of chlorate, either alone or in combination with antibiotics, to target and reduce the viability of Nar- and Nap-containing bacteria by converting chlorate into chlorite within the bacterial cells, minimizing toxicity to non-target cells and avoiding the presence of other chlorine oxyanions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing chlorine oxyanions are used to target bacteria, then bacterial viability is reduced, but toxicity to non-target cells increases
Solution Approach 1:
The patent uses chlorate as an intermediary substance that is converted into chlorite by bacterial nitrate reductase enzymes. This intermediary approach allows selective targeting of bacteria containing Nar or Nap enzymes while sparing other cells, as the toxic chlorite is generated specifically within bacterial cells that possess the reducing enzymes.
Solution Approach 2:
The invention creates local toxicity within bacterial cells by converting chlorate to chlorite specifically inside Nar/Nap-containing bacteria. The toxic effect is localized to the bacterial cytoplasm where the reduction occurs, preventing systemic toxicity to host cells that lack the reducing enzymes.
2Reliability
If antibiotics are used alone to treat bacterial infections, then antibiotic resistance develops, but using combination therapy increases treatment complexity
Solution Approach 1:
The patent combines chlorate with antibiotics to create a composite treatment approach. This combination targets bacteria through two different mechanisms: chlorate disrupts cellular respiration by depleting nitrate, while antibiotics attack bacterial cell walls or protein synthesis, providing synergistic effects that reduce resistance development.
Solution Approach 2:
Chlorate serves multiple functions simultaneously: it acts as an antimicrobial agent, depletes nitrate reserves that bacteria use for survival, and enhances the effectiveness of co-administered antibiotics. This multi-functionality reduces treatment complexity compared to using multiple different antibiotic classes.
3Reliability
If high concentrations of antimicrobials are used to ensure bacterial death, then treatment effectiveness increases, but side effects on host cells increase
Solution Approach 1:
The patent converts the harmful effect of chlorate into a beneficial selective toxin. Chlorate itself is relatively non-toxic, but bacteria that attempt to reduce it for energy production generate toxic chlorite as a byproduct. This converts a potential harm into a selective benefit where the bacteria's own metabolic pathways become their downfall.
Solution Approach 2:
The bacterial cells themselves generate the toxic chlorite through their own nitrate reductase enzymes when exposed to chlorate. The bacteria are essentially self-poisoning through their metabolic response to the compound, eliminating the need for externally administered high-concentration toxins that would harm host cells.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach selectively targets and reduces the viability of antibiotic-resistant bacteria while maintaining non-toxicity to cells lacking Nar or Nap, effectively addressing chronic infections and biofilm disruptions.
Implementation Method 1
converting chlorate into chlorite within the bacterial cells
Data Source
AI summary
Provided herein are methods, systems, and related compounds and compositions suitable for reducing antibiotic resistance and/or the survivability of Nar (cytoplasmic nitrate reductase)-and/or Nap (periplasmic nitrate reductase)-containing bacteria.